Sad-iron.



L. HOFFMAN.

L IN VEN TOR.

A TTORNE Y.

L. HOFFMAN.

SAD lRON.

APPLICATION man FEB.3.1917.

1,241,21 Patentedsopt. 25, 191?.

2 SHEETS- SHEET 2.

LOUIS HFFMAN', 0F DULUTH, MINNESOTA.

Y SADeIRON.

Specification of Letters Patentl Patented sept. 25,1917.

Application led February 8, 1917. Serial No. 146,507.

To all whom it may concern: v

Be it known that I, Loms HOFFMAN, a citizen' of the United States,residing at Duluth, in the county'of St. Louis and State of Minnesota,have invented certain new and useful Improvements in Sad-Irons, of whichthe following is a specification, reference being had therein to theaccompanying drawing.

This invention resides in certain improvements in sad irons 'and relatesparticularly t0 electrically heated sadirons.

The principal object ofthe invention is to produce a simple andpractical iron of this character having means therein whereby eithersteam or water, or any desired-mixture thereof may be applied to thegoods being ironed through the face of the iron.

Other objects and advantages of my novel combination will appear in thefurther description of the device.

In the accompanying part of this application:

Figure 1 is a vertical longitudinal central sectional view of myimproved sad iron, illustrating a portion thereof in elevation.

Fig. 2 is a top plan v iew 'of the base of the iron illustrating thearrangement of perfoittions therethrough and partition walls, an

Fig. 3. is a top plan view of the iron with a portion of the handleattachment removed.

1 represents the base which compared with other parts of the iron iscomparatively thick and heavy, it being formed preferably of cast metal,and having in the upper face thereof, a series of inter-communicatingopen transverse channels or conduits 2. rlhe conduits 2 are preferablyof rectangular form in cross section, are parallel with each other andextend from one side of the base tothe other with the exception of asmall marginal portion 3 extending wholly around the base. The crossconduits 2 communicate with a central longitudinal similar conduit 4 inwhich is supported a steamand water distributing pipe 5 and whlch pipe1s provided with opposed perforations 6 opposite each transverse conduit2, whereby the contents of the pipe may be forced directly andsimultaneously into both sections of each transverse conduit. I haveshown the conduitl as being irregular in longitudinal eX- tent, ithaving a reverse curve therein to drawings forming avoid othersupporting means in the iron 9 of the iron. The object of the`intermediate the through construction, but this is simply forconvenient adaptation of my improvement to a form of iron already inuse.

apart and formed in the bottom of each conduit 2, each hole 7terminatingin a reduced nozzle perforation 8 through the face dischargeholes being formed in this Way, aside from convenience in manufacture,is to provide means whereby the-steam generated in the iron may bemaintained as hot and as active as possible within close proximity toits point of discharge.

The division walls 10 separating the conduits 2 are preferably ofsubstantially the -same width of the conduits to accomplish as nearly'as possible, even distribution of heat throughout the base of the iron.

A metal `covering plate 11, preferably of copper, rests upon the upperface of the base 1, and is held tightly thereupon by the screw threadedthrough bolts 12 and 13, which are also screw threadedly attached to thebase in suitable blank places 14 and 15, left therefor in the base.

The electric heating element rests upon the cover plate 11 and iscomposed of any suitable electric resisting material 16 connected withthe electric circuit, as indicated at 1.7 and 18 and surrounded bysuitable in.- sulation indicated at-19, this arrangement of heatingdevice being common in the art. On top of the heating element restsdirectly the steam generating receptacle 20, it covering practically theentire surface of said element whereby an amount of heat substantiallyequal to that distributed to the base of the iron is applied to thereceptacle. i

The receptacle 20 has formed therein a longitudinally inclined chamber21, the forward end thereof being somewhat higher than the rear end,said chamber occurring bolts 12 and 13 which loosely pass verticallythrough the solid ends of thereceptacle. Nuts 22 and 23 surround thebolts 12 and 13 above the receptacle and are designed to hold the latterin position upon the heating element by bein screwed tightly thereupon.

The istribu'ting pipe 5 has formed prefl Numerous nozzle holes 7 arespaced an equal distance erably integral therewith an upwardly ex- 'y 21and adjacent the forward end thereof. Directly above the branch pipe 24and screw threade'dly attached through the wall of the receptacle abovethe chamber 21, is a small 5 cylinder 25, the lower end of which issolid,

as at 26 and the 'upper end open for application of the operativemechanismtherein. rlhe lower end of the water supply cylinder is madeinthe form of a discharger nozzle 27 pointing directly downward into theopen end of the branch pipe 24, though. but partly `fills the open endof said branch. Thls nozzle has a small aperture 28 therethrough, theupper end of which terminates in a valve seat for the co-nical-shapedvalve 29 on the end of the stem 30 and which valve is held normallyseated by a suitable expansive spiral spring 31 surrounding the stem 30and thrusting against the upper face of the valve at one end and thelower face of the screw plug 32 at the other end. A screw threadedstuiing gland 33 is mounted within the plug 32 to. form a tight jointabout the stem which protrudes therefrom. A nut 34 isl fixed upon theextreme upper end .of the stem and spaced a distance above the gland 33,the object of which will be dev scribed later.

Adjacent the lower rear end of the chamber 21 and near one cornerthereof, is the water supply pipe 35, it being screw threaded throughthe upper Wall of the chamber. This pipe extends upwardly through theupper wall of the iron housing 36 and just above same is connected to ahorizontal cylinder 37 which carries a reciprocal valve 38 and stem 39which control the iow of water therethrough into the chamber 21. rlhisvalve 'and o peration thereof is similar to that within the cylinder 25,except that an inward motion of the valve stem 39 opens the valve,whereas in the'former, an out# .Ward motion of the stem opens the valve.

will be described later. A suitable water supply pipe 40 is connected at41 to the cylinder 37 and at its opposite' end to the cyllnder 25 at 42.

with the pipe 40 and is provided with any suitable form of valveconnection 44V to which. the water hose may be attached vand by which aconstant supply of waterv under pressure is had. The housing 36 restsabout its' entire lower edge upon the cover plate 1,1 vand is heldtightly there against by suitable nuts 45 and 46 upon the upper screwthreaded ends of the bolts 12 and 13.v An up-A wardly extending boss 47is formed upon the upper wall .of the housing about each bolt 12 and 13and upon which rests the handle supporting `member 48, thenuts 45 and e546 securely holding said member in place It is not considered necessaryto further describe the details and operation of this` valve, as theyare well known in the art. I The mechanism for operating the stem 39 Abranch 43 is connected The lever 53 is pivotally mounted at 55 upon thearm 56 of the double armed bracket 57 secured to the inclined portion ofthe handle supporting member by suitable screws 5858. A lrelativelyshort portion 59 of the lever 53 extends beyond the pivotal point and ispivotally connected at 60 to a rod 61, the opposite end of which ispivotally connectedl at 62 to one end of the valve operating rod 63,which is pivotally mounted at 64 within the arm 65 of the bracket 57,the opposite end 66 of the lever being forked or surrounding thevalvestem 30 beneath the nut 34, and by which. lever the valve stem is raisedwhen the free end of the lever -53 is raised. The -lever 54 isgracefully arched to form as'v little obstruction as possible, a-portionof whichv extends parallel the handle supporting member 48 is rigidlyfixed a rectangular shaped open guard 72 '1 for the protection of theelectric plug 73, as is commonly used upon such devlces.

From the foregoing it isy evident thatA 119- haveproduced a simple andcompact elec-Q tric heated sad iron havin means whereby.

steam or water` or any deslred combination `of both may be quickly and.conveniently applied to the goods being pressed. e

` Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:

1. Asadiron of the character described,

comprising in combination a base havin a 120 plurality of transverseconduits therein with perforations in the conduits through the faceofthe iron and a longitudinal conduit communicating withthe transversVconduits, a perforated distributing pipe extending the full length of.the longitudinal conduit, a

covering plate on top of the base, a heating element restlng upon thecovering plate, a chambered steam generator resting upon the 'heatingelement, la pipe connectionbetween 130 the perforated distributing pipeand the steam generating chamber, a water supply for the steam chamber,a water supplyfor the pipe connection with the perforated pipe and meansfor controlling the water supplies independently or simultaneously,substantially as and for the purpose described.

2. ,A sadiron of the characterl described, comprising in combination abase having a plurality of transverse conduits therein withperforations. in the conduits through the face of the iron and alongitudinal conduit communicating with thetransverse conduits, adistributing' pipe extending the full length of the longitudinal conduitand having perforations therein communicating with each transverseconduit, a covering plate on top of the base, a heating element on topof the covering plate, a chambered steam generating receptacle on top'of the heating element, a pipe connection between the perforateddistributing pipe and the steam generating chamber, a Water supply forthe chamber, a water supply for the pipe connection passing through thechamber and means for controlling the water supplies independently orsimultaneously.

3. The combination with a Sadiron of the character described, having aperforated cel-l lular base and a perforated distributing p ipe withinthe cells in the base, and a heating element, resting upon the base, ofa steam generating receptacle having an inclined chamber therein, a pipeconnection between the chamber and the perforated distributing pipe, awater supply pipe communicating with the lower end of the chamber, awater supply passing through the upper end -of the chamber anddischarging directly into the pipe connection though not attachedthereto, and means for controlling the water supplies independently orsimultaneously, substantially as and for the Apurpose described.

4. The combination with a heated sadiron of the character described,having steam generating means therein, a perforated base communicatingwith the steam generator, a

water supply connected with the iron of two independently controlledwater circuits within the iron, one of which discharges directly ,intothe steam generator and the other discharging through the steamgenerator to the perforated base of the iron, substantially as and forthe purpose described.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

Louis HorrMAN.

Witnesses W. H. DENHAM, S. GEO. STEVENS.

